Automatic recording device.



PATENTED FEB. 27, 1906.

A. ABRAHAM. ,AU TOMATIG RECORDING DEVICE.

APPLIOATIOH FILED 811F120, 1905.

' s snnnms-snmsf 1.

l ra 6n Z01:

w M W PATENTED FER-27,- 1966 A. ABRAHAM.

AUTOMATIC RECORDING DEVICE.

AP PI'JIOATIOR' FILED 8 3F120. 1905.

a snnms snnmlzj fnvenior [in eases.

adv/MW PATENTED FEB. 27, 1906.

U A. ABRAHAM.

AUTOMATIG RECORDING DEVICE.

APPLICATION FILED SEPT.20.1905.

3 SHEETS-SHEET 3 ///7//A Inz/ 6 76 20 7'.

fly m UNITED STATES" PA ENT OFFICE;

' To all whoaaaa concern! Be it known that IfADOIiF Anglia-a, a' subject of the King of Prussia, German Ems peror, and 'axr'esident' of Neuhaus-on-thematic Recording Device, of which the follow ji 1n is'as'pecification.

Oste, Kingdom of Prussia, German mpire, (whose post-oflice address is Deichstrassq) have'invented a certain new and useful Auto y nvention refers to an automatic re-; cording device which is applicableon indicatorssucli 'as barometers, 'manom'eters,

thermometers, and the like. 1 l 1 a is.

- mometer, or

. iont e t at any time the measurement. that'has .been' indicated before by the barometer, ther This device enables any pers ex ired, I v v v eferring to he drawings "fwhichlikeE parts are similarly designated Figured is'one orm of device embddyingym vention appliedtoah aneroid baromete :I 2 is a disk a isrotated These;m" ets hold the on the disk in i -Fi 5 is a section on' line 5' '5} The barometer ris adaptfed-to areioneior more magnets- 11, preferably behind :1

rear view of the same, asection on line 3 3, Fig.2. Fig 4 isa modification; and

a n the drawhigs thedevice is s to an aneroid ormetal batometer;

, 'p m 'e' lever a, which is-pivoted atj-.-s.;to'-;anyfixed art-for .instan'ce;'- 1't6 the casing. --?At its ee' ndthe 'lver is provided with, aig'uidinge eeb or anymher means to 'de an endless hair: d, I referabl ofvs'teel, mfiOnt'ofarot'atable kp, ythe fluctuations of the; air-pressure the eye b'will vibrate, thus guid ing the chain'"to one or -the other side, The by a clockwork evenly about" one part. of the disk 0 there? the-position they are givenhylthe guide-eye";

' b of the levera when passmg I ,Wlieiiithelinks of the h inm iv at the li heimagnetic attraction ceases nd the 's v ri e lineain whichthe cha is lying barometer an also:

released/from the disk an -.-ha down'accordingto its own we' ht until am" ,attractedzfwhen passing the" ine e e; e e v -movable surface and a chain moving todiskc may also itself be made magnetic on the :o'r'g-the height of the 'time, corresponddiskjc is are trati J-i Z jr lesbei-n drawn'on the disk, in combi- "amt ion with 'a 'gal; 'Dhus' an automatic r' eif Specification 6: has. Patent. Application and mm :0, 1aos; s"il1r .-279,s4s'.

t k m v v 1 .power ma e eflect'on that part of the metal chainpassing in front the ripwardlyerhoving Y the line e-eLQ I Patented Feb. 27, 1906.

fectly efiicient for general use and which does away with .the troublesome renewing of the pa'per'stripsarid the color. All that need be done is towind up the clockwork now and then.-

" In the modification shown in Figs-4 and?) the disk chart'is replaced by an endless band charts, which passes over-two drums g and v.g,ofwhich the upper," g, is driven from the clockwork by means of the gearing h. .The

chain r is hungover the upper drum and laid ell-this band by the eye b,'fso that the weight .fbfthe chain is'mginl carried by the up er drum 9; 5; The magnets i, which are pre erthe front part, so as to allow theirm agnetic portion f th band c. The lever al'is here "of the shapeof a bell-crank lever, the arm a, of whichlisconne'cted by'alink m to onearm 'ablyf but not necessarily, permanent magv nets, are-placed within theband 6 close to ofalevern, the other arm being connected" "b a secondlinkfotoabar fixed to a series o -metal' barometers' r in t e shape of boxes; Since -as'is known,'jbarometers of this kind showing in; thedrawings;- but, of course, any numberma be used as circumstances may requiref T e bar p-is guided at its end by a lever q, the ends of which are rotatively fixed to links s,pivoted tofixed parts on the casing.

The device ma-yfbeused on other-indicators. Thus ifthebarometer is replaced by a thermometer an automatic recording metal thermometer-is. created.

Instead'iof employing a disk any other 1 smovablesurfa'ce such as a cylinder or endle'ss-band, maybe made use of.

What I claim as by Lettersi-Patent,is. l

1-. In anau'tbmatic recordin device, in combination an indicator, a 0 ockwork, .& movable surface and a chain moving tonew, and desire to secure getherwith' the surface, means operated by- I the indicator to guide the chain on the surface. a Y I In-anautomatic recording device, in combination an indicator, a' clockwork a oombinationzgan indicator, a c ockwork, a

surface and-a cham moving tocombination with a suitable moving chart, a

flexible metallic marker cooperating with the chart and magnetically held thereto, means to move the marker in accordance with the indications to be recorded.

6. In an automatic recording device, the combination with a suitable moving chart, an endless metallic chain cooperating with the chart to mark on a portion thereof the indi cations desired, means to position said chain -on the chartin accordance with the indications to be recorded and means to create a magnetic field from the positioning means along the path of the chart for a determined distance, whereby said chain is held to the chartjn the line recording the indications over a definite period of time and is automatically released from the chart after having passed said field. 4

7. In an automatic recording device, the combination with a chart, a mechanism therefor, means to produce a magnetic cordance with the indications to be recorded.

8. In an automatic recording device, a disk, a clockwork to rotate the same, said disk having concentric rulings to indicate different values and circumferential markings to indicate time, means to produce a ma netic field over the upper part of said dis between the determined time-markings, an endless chain held to said diskby said field, and an indicator moved in accordance with the indications to be recorded, to osition said chain between the concentric r ings as it enters the magnetic field.

9. In an automatic recording device, the combination with a chart having parallel rulings thereon in the direction of travel of the chart and time-indicators at its edge, means to drive the chart, means to produce a magnetic field extending over a o'rtion of its surface, an endless chain hel to the chart by said magnetic field and an indicator to move the chain relatively to the rulin s and in accordance with the indications to e recorded.

ADOLF ABRAHAM. :Witnesses: HARRY RAECKNER, ERNEST H. L. MUMMENHOFF. 

